Another story. . .Just a day in our life with Madelyn

Tim and Madelyn's conversation tonight in the car:

(Madelyn yawns.)
Tim: What was that noise?
(She doesn't say anything)
Tim: Was that a yawn?
M: Yeah, my belly's tired
Tim: Your belly yawned?
M: Yeah
Tim: Are you tired?
M: No, just my belly
(A few minutes later. . .the sound of a yawn)
Tim: Was that your belly again?
M: No, that was one of my feet! And, if you hear it again, it will be the other foot.